scintillating scotoma
- noun
- /ˈsɪntɪˌleɪtɪŋ skəˈtoʊmə/
- Specialized
- A scintillating scotoma often appears as a shimmering zigzag pattern in the vision before a migraine headache.
Examples
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She experienced a scintillating scotoma before her migraine started.
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Many patients report seeing a scintillating scotoma shortly before experiencing any pain.
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If you notice a scintillating scotoma, it's best to avoid bright lights and rest in a quiet place.
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Is a scintillating scotoma always a sign of a migraine?
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A scintillating scotoma often appears as a shimmering zigzag pattern in the vision before a migraine headache.
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If you notice a scintillating scotoma, it's best to avoid bright lights and rest in a quiet place.
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Many patients report seeing a scintillating scotoma shortly before experiencing any pain.
Synonyms
A blind spot in your vision
A small area where your vision becomes weak with flickering coloured lights, often before a migraine
Antonyms
Surface Forms
Morphology
The phrase is fully compositional: 'scintillate' means to give off flashing lights and 'scotoma' denotes a localized loss of vision, so a 'scintillating scotoma' is predictably a scotoma accompanied by flashes. Although it is a technical medical term, the adjective+noun combination follows normal English patterns, so a learner who knows both constituents can infer the meaning.
Etymology
Scintillating scotoma comes from the words scintillating ('sparkling') and scotoma ('blind spot'), creating the picture of a bright, flashing area that hides part of your sight. That's why the term describes the shimmering zigzag or flashing patch people often see before a 'migraine'.